CN107920717A - The image guide device of endoscope and the manufacture method of endoscope image pick-up device - Google Patents
The image guide device of endoscope and the manufacture method of endoscope image pick-up device Download PDFInfo
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- CN107920717A CN107920717A CN201580082925.8A CN201580082925A CN107920717A CN 107920717 A CN107920717 A CN 107920717A CN 201580082925 A CN201580082925 A CN 201580082925A CN 107920717 A CN107920717 A CN 107920717A
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- guide device
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- image guide
- shading pipe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
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Abstract
Manufacture be used for intravascular sight glass when camera device image guide device when, avoid configuration from being attached to because of bonding agent pollution in the object lens of image guide device front end or be hurt because of grinding.In the image guide device including the lens fiber union body with optical image fibers and the object lens for being fixed on its front end and the shading pipe for covering object lens entirety, set in shading pipe and prevent object lens along moving for direction of insertion and in the internal lens positioning unit for keeping object lens entirety.Lens positioning unit is for example to protrude the protrusion to be formed in the inner surface of shading pipe.In addition open-work is set in the perisporium of shading pipe, lens-optical fiber union body is fixed on inside shading pipe by the bonding agent being injected into from open-work between the inner surface of shading pipe and the outer surface of lens-optical fiber union body.
Description
Technical field
The present invention relates to the image guide device of the camera device for intravascular sight glass etc. and the manufacturer of camera device
Method, and in particular to configuration can be avoided to be attached to pollution or because grinding because of bonding agent in the object lens of image guide device front end
The technology of mill and injury.
Background technology
Endoscope imaging apparatus for the observation of internal blood vessel（Conduit）, as Patent Document 1 in the past, tool
Have including tie up the optical image fibers of the tiny fiber-optics of quartz glass, be fixed on bonding agent optical image fibers front end object lens,
Cover a part for optical image fibers and the shading pipe of object lens entirety, by optical image fibers and encase fine more around shading pipe
Light-conductive optic fibre that component glass system optical fiber is tied up and the construction for encasing the cage walls around light-conductive optic fibre.And pass through leaded light
Optical fiber and irradiation light, and shoot internal blood vessel by object lens and optical image fibers.
In addition in the past when manufacturing camera device, as shown in patent document 2, carried out by following process, i.e.
Object lens are bonded in the front end of optical image fibers by handwork by skilled worker, and bonding is applied around optical image fibers and object lens
Shading pipe is inserted into after agent.Then, shading pipe outer circumferential surface with bonding agent by shape of the more light-conductive optic fibres uniformly to configure
State is fixed, thereafter, with cage walls clad surface.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2013-202082 publications
Patent document 2：Japanese Unexamined Patent Publication 2003-290135 publications.
The content of the invention
The subject that the invention solves
Optical image fibers, object lens, shading pipe and light-conductive optic fibre are small or superfine component, it is necessary to avoid injury, therefore it is non-
Often it is difficult to handle.It is additionally, since and carries out that optical image fibers are be bonded with object lens, more light-conductive optic fibres are to shading pipe with handwork
Bonding, therefore low production efficiency.
In addition in the technology that patent document 1 is recorded, since object lens to be fixed on to the front end of optical image fibers with bonding agent
Lens-optical fiber union body be fixed in shading pipe, so being attached to the end face of object lens there are the bonding agent and being attached to pollution
The problem of.
, can and then the end of image guide device needs to grind and finished, but when carrying out the grinding process
It can injure the surface of object lens.
The purpose of the present invention is in order to solve foregoing existing issue point, there is provided a kind of scheme so that image guide device and
Camera device it is easy to manufacture, pollution is attached to because of bonding agent without having to worry about object lens, in addition, can be reliable in grinding process
Ground prevents that the surface of object lens is injured.
Solutions to solve the problem
Image guide device of the invention involved by claim 1 is characterized in that including：Lens-optical fiber union body, have
The optical image fibers of transmission light and the object lens for being fixed on optical image fibers front end；And shading pipe, before lens-optical fiber union body
End is inserted into, and covers a part of outer circumferential surface of object lens entirety and optical image fibers；
The shading pipe has a lens positioning unit, which prevents object lens moving along direction of insertion, and by thing
Mirror is generally held in inside.
Image guide device of the invention involved by claim 2 is characterized in that：The lens positioning unit be
The inner surface of shading pipe protrudes the protrusion to be formed.
Image guide device of the invention involved by claim 3 is characterized in that：The lens positioning unit be
The end difference prominent to central axis direction that the end of shading pipe is formed.
Image guide device of the invention involved by claim 4 is characterized in that：The lens positioning unit be
The end of shading pipe formed towards open-ended and internal diameter reduction taper surface.
Image guide device of the invention involved by claim 5 is characterized in that：The shading pipe has in perisporium
Open-work, links bonding agent between external surface, thoroughly by being injected into shading pipe internal surface and lens-optical fiber from the open-work
Mirror-optical fiber union body is fixed on inside shading pipe.
Image guide device of the invention involved by claim 6 is characterized in that：The shading pipe is in perisporium
Portion has the path region of reduced inner diameter, by the inner surface in path region by the appearance face pressure of lens-optical fiber union body
Connect.
Image guide device of the invention involved by claim 7 is characterized in that：By being previously applied on the screening
The thermoplastic adhesive of the inner surface of light pipe, lens-optical fiber union body are fixed on inside shading pipe.
The manufacture method of endoscope imaging apparatus of the invention involved by claim 8 is characterized in that including：
Prepare the process of foregoing image guide device；
By image guide device and the more light-conductive optic fibres extended more than the front end of image guide device insertion cage walls
Process that is interior, making image guide device and more light-conductive optic fibres be protruded from one end of cage walls；
By the process of the cylindric cladding assisted tool of the image guide device protruded from cage walls and more light-conductive optic fibre insertions；
The front end for more light-conductive optic fibres for being inserted into cladding assisted tool is maintained into the state that collects, and make cladding assisted tool around
Moved while axis rotates to cage walls side, so that more light-conductive optic fibres are distributed the outer circumferential surface in image guide device
Process；
Cladding assisted tool is moved to the position of the outer surface of covering cage walls, the inner surface and cage walls of assisted tool will be coated
The process that outer surface bonding combines；
By making cladding assisted tool be moved to the position of the front end more than image guide device in opposite direction, make to aid in cladding
The process that the cage walls that tool links are moved to the position of the front end more than image guide device；
The process for cutting off cage walls and more light-conductive optic fibres in the position more than image guide device front end；And
The process in abrasive cutting-off face.
Invention effect
Image guide device of the invention involved by claim 1, object lens are prevented along direction of insertion since shading pipe has
Lens positioning unit mobile and that object lens are generally held in inside, so being inserted into lens-optical fiber union body into shading pipe
When, object lens will be maintained at will not be from the position that shading rostrum goes out.Thus, without worrying the meeting in the grinding process of finishing
Hurt the surface of object lens.
According to the present invention involved by claim 2, the lens positioning unit is the inner surface protrusion shape in shading pipe
Into protrusion, since the forming position of protrusion can be changed easily, thus design the free degree become larger.
According to the present invention involved by claim 3, the lens positioning unit be the formation of the end of shading pipe to
The end difference that central axis direction protrudes, since the formation of end difference is relatively easy to, so the manufacture of image guide device can be improved
Efficiency.
According to the present invention involved by claim 4, the lens positioning unit is the court in the formation of the end of shading pipe
Open-ended and internal diameter reduction taper surface, therefore only adjusts the angle of inclination of taper surface, is easy to change object lens
Holding position.
, will be saturating by the bonding agent injected from the open-work of the shading pipe according to the present invention involved by claim 5
Mirror-optical fiber union body is fixed on inside shading pipe, therefore lens-optical fiber union body becomes the fixation inside shading pipe can
Lean on, it is contaminated without worrying bonding agent to be attached to object lens.
According to the present invention involved by claim 6, path region is set by the middle part of the perisporium in the shading pipe
To crimp lens-optical fiber union body, therefore coming off for lens-optical fiber union body can be reliably prevented with simple structure.
Further, since without using bonding agent, pollution is attached to because of bonding agent without the surface for worrying object lens.And then can be easy
Change sets the position in path region, therefore the free degree designed becomes larger.
According to the present invention involved by claim 7, the thermoplasticity of the inner surface by being previously applied on the shading pipe
Lens-optical fiber union body is fixed on inside shading pipe by bonding agent, therefore can be with the simple of only heating thermoplastic bonding agent
Operation, lens-optical fiber union body is securely fixed in inside shading pipe, without worry bonding agent to be attached to object lens and by
Pollution.
, can be easily to the surface of image guide device according to the manufacturing method of the present invention involved by claim 8
The uniform configuration of more light-conductive optic fibres is carried out, therefore can more easily manufacture camera device.
Brief description of the drawings
Figure 1A shows section for the conveyer of the manufacture of endoscopic images guide device and the schematic configuration of pedestal
Face figure.
Figure 1B is the sectional view for illustrating to form the manufacturing sequence of the image guide device of endoscope image pickup part, is schemed（a）Show
Bonding agent is set to be attached to the figure of the process of the front end of optical image fibers, figure（b）Showing, which is adhered to object lens, is attached to bonding agent
Optical image fibers front end process figure, figure（c）Show to put on from the second hole and connect with the integrated lens of object lens-optical fiber
The state diagram of knot body, figure（d）Show the process chart for the front that shading pipe is installed on to lens-optical fiber union body.
Fig. 2 shows the 1st embodiment of the present invention, figure（A）It is the sectional view for showing image guide device front end, figure
（B）It is figure（A）Enlarged view of the main part.
Fig. 3 shows the 2nd embodiment of the present invention, figure（A）It is the sectional view for showing image guide device front end, figure
（B）It is figure（A）Enlarged view of the main part.
Fig. 4 shows the 3rd embodiment of the present invention, figure（A）It is the sectional view for showing image guide device front end, figure
（B）It is figure（A）Enlarged view of the main part.
Fig. 5 shows the implementation order of the manufacture method of endoscope image pick-up device according to the present invention, figure（A）Be show by
In image guide device and light-conductive optic fibre insertion cage walls and the side view of state protruded from one end is allowed to, is schemed（B）It is to lead
The side view in a part of section of the state of the front end insertion cladding assisted tool of light optical fiber, figure（C）It is that to make to be inserted into cladding auxiliary
Help the side view in a part of section for the state that the front end of the light-conductive optic fibre of tool collects.
Fig. 6 shows the implementation order of the manufacture method of endoscope image pick-up device according to the present invention, figure（A）It is to show to make
Cladding assisted tool is moved to the side view in a part of section of the state of the position of covering cladding tube outer surface, figure（B）It is to show
Make the side in a part of section of the midway state of front movement of the cladding assisted tool to image guide device together with cage walls
Face figure, figure（C）It is to show to make cladding assisted tool move together the position of the front end more than image guide device with cage walls
The side view in a part of section of state.
Fig. 7 show the manufacture method of endoscope image pick-up device according to the present invention implementation order, show more than
The side view in a part of section of the position cut-out cage walls of image guide device front end and the state of light-conductive optic fibre.
Scheme in Fig. 8（A）It is the side cross-sectional views for showing endoscope image pick-up device, figure（B）It is that endoscope image pick-up device is shown
Front view.
Embodiment
, should using manufacture device as shown in Figure 1A in the manufacture of the image guide device of endoscope imaging apparatus
Manufacture device includes：Keep optical image fibers M1 and have the function of downwards the conveyer 2 of transport picture optical fiber M1 front ends, set
Put the lower section of conveyer 2 and be open upward the first hole 31, the second hole 32 and the 3rd hole 33 pedestal 3 and make
Conveyer 2 relative to pedestal 3 in the horizontal direction and vertical direction relative movement drive division（It is not shown）.
The bonding agent M2 for being attached to optical image fibers M1 front ends is configured with the first hole 31 of pedestal 2, is matched somebody with somebody in the second hole 32
The object lens M3 installed in the front end of optical image fibers M1 is equipped with, is configured with the 3rd hole 33 and surrounds the outer of optical image fibers M1 and object lens M3
The shading pipe M4 of side face.
Conveyer 2 shown in Figure 1A has the structure same with so-called sharp pencil.The conveyer 2 includes：Have on the top
There is the tubular insertion section 21 of the opening for optical image fibers M1 insertions；The spring 22 to exert a force upward to insertion section 21；With insertion section
21 lower section connection simultaneously has multiple vertically extending slits and lower front end towards outside in the circumferential direction in lower front end
The collet portion 23 of the tubular of opening；And surround the outer circumferential surface in collet portion 23 and close the ring part of the lower front end in the collet portion
24.Conveyer 2 also has the housing department 26 as outer packing；And it is arranged on 26 lower end of housing department and possesses and make optical image fibers M1
The guiding tube 27 of prominent aspis 28.
In the top of insertion section 21, equipped with the pars infundibularis 25 that opening is larger, in order to be inserted into optical image fibers M1.Insertion section 21
There is downward ladder in outer circumferential surface, spring 22 abuts to the ladder.Spring 22 is disc spring, and upper end abuts to 21 periphery of insertion section
The ladder in face, lower end abut to the upward ladder for being arranged on the inner side of housing department 26.Spring 22 exerts a force insertion section 21 upward.
Insertion section 21 passes through the press section of pressing insertion section 21 downwards（It is not shown）Moved up and down with spring 22.
Collet portion 23 has 3 vertically extending slits in the circumferential direction in lower front end so that front end is divided into 3
Part.The quantity of the slit is not limited to 3, has a plurality of.Collet portion 23 moves up and down together with insertion section 21, during decline
Front end is stretched out the downside of ring part 24 and is opened laterally below, during rising its outer circumferential surface by ring part 24 surround thus under it
Fang Qianduan is closed.
Then, lens-optical fiber union body is formed to fixing object lens M3 in the front end of optical image fibers M1, and with shading pipe
The order for covering the outer circumferential surface of its front and manufacturing image guide device illustrates.
First, optical image fibers M1 is installed on conveyer 2.Optical image fibers M1 is inserted into insertion section through pars infundibularis 25
21.Then, press section is passed through（It is not shown）Insertion section 21 is pressed downward, declines collet portion 23.In this way, collet portion 23
Lower front end is opened towards outside, and optical image fibers M1 declines in collet portion 23.Then, the pressing of press section is released, passes through spring
22 force rises insertion section 21 and collet portion 23.If collet portion 23 rises, ring part 24 surrounds the outer of collet portion 23
Side face and close the lower front end in collet portion 23, therefore optical image fibers M1 is fixed.So it is repeated using press section
The pressing of insertion section 21-releasing action, it is defeated from the front end of guiding tube 27 only with required length so as to make optical image fibers M1
Go out.
Then, with reference to Figure 1B, illustrated to being used in the manufacturing sequence of image guide device of endoscope image pickup part.
（1）Optical fiber conveying operation：The front end of optical image fibers M1 is made only with certain length from conveyer 2 by foregoing method
Aspis 28 be transported to lower section.The delivered length of optical image fibers M1 is less than 3 times of the diameter of optical image fibers M1, is preferably
Less than 2.5 times, more preferably less than 2 times, so that the horizontal direction position of optical image fibers M1 front end faces will not be because of image light
Bending of fine M1 etc. and change.
（2）Bonding agent adheres to process：By drive division, conveyer 2 is moved horizontally to guiding tube 27 and be in the first hole 31
Surface and then decline, so that the front end of optical image fibers M1 is impregnated into the bonding agent M2 in the first hole 31（With reference to Figure 1B
（a））.Thus bonding agent M2 is attached to the front end of optical image fibers M1.It is strong for the influence to human body and bonding as bonding agent M2
From the aspect of degree, preferably cyanoacrylate bonding agent or UV cured adhesives.
（3）Lens bonding process：By drive division, conveyer 2 is increased from the first hole 31 and put on optical image fibers M1, make defeated
Send device 2 to move horizontally and decline after making the position for the object lens M3 that the front end of optical image fibers M1 is moved to the second hole 32, make image light
The bonding agent of fine M1 front ends is crimped onto object lens M3（With reference to Fig. 1（b））.Thus, the front end for being formed in optical image fibers M1 has been bonded thing
The lens of mirror M3-optical fiber union body F.
（4）Shading pipe installation procedure：By drive division, conveyer 2 is increased, will link optical image fibers M1's and object lens M3
Lens-optical fiber union body F is put on from the second hole 32（With reference to Fig. 1（c））.Then, by drive division, move horizontally conveyer 2
Decline after to the position in the 3rd hole 33, a part for the entirety of object lens M3 and optical image fibers M1 front is inserted into the 3rd hole 33
In interior shading pipe M4（With reference to Fig. 1（d））.Shading pipe M4 is cylindrical shape, has the length that can at least store object lens M3 entirety.
As the material of shading pipe M4, preferential selection stainless steel is considered for the influence to human body, corrosion resistance, intensity etc.（Example
The stainless steel as defined in being numbered in JIS by SUS）.
By carrying out foregoing sequence（1）~（4）, the image for possessing optical image fibers M1, object lens M3 and shading pipe M4 can be manufactured
Guide device G.The manufacture method of the image guide device G carried out using foregoing process, because the front end of optical image fibers M1 is consolidated
Be scheduled on the aspis 28 of conveyer 2, bonding agent M2, object lens M3 and shading pipe M4 be arranged respectively at the first hole 31, the second hole 32 and
In 3rd hole 33, and make a relative move pedestal 3 and conveyer 2, institute is so as to correctly positioned.Thus, it is possible to
Produce and make the high image guide device G of precision.In addition, each operation both can by control unit automatically control come into
Row operation, manual operation is carried out also by operating personnel.
It is used to keep shading pipe M4 and the optical image fibers M1 front ends inside insertion in addition, image guide device G needs to set
And position deviation and the holding unit being not easily separate will not occur between object lens M3.As the holding unit, for example, can examine
Consider the inner peripheral surface that lens-optical fiber union body F is fixed on to shading pipe M4 by the bonding agent coated in front end side face.So
And in this case, bonding agent is possible to be attached to the end face of object lens M3 and object lens M3 is contaminated.Therefore in the present invention, lead to
Cross and lens positioning unit is set in shading pipe M4, to prevent object lens M3 moving along direction of insertion, and object lens M3 is integrally kept
In inside, so that image guide device G and shading pipe M4 can be kept without being coated with bonding agent, it is inclined so as not to generation position
Shifting will not separate.Hereinafter, the embodiment of lens positioning unit is illustrated.
（1st embodiment）
In embodiment shown in Fig. 2, protrude to form protrusion 10 in the inner surface of shading pipe M4, and positioned it as lens
Unit.Shading pipe M4 has the fully big direction of principal axis length of the length than object lens M3 axially.In shading pipe M4, to from pipe
End only pressurizes towards central axis direction at a distance of the tube wall periphery of the position of prespecified distance and is allowed to protrude inwardly, in formation
The footpath part smaller than the outside diameter of object lens M3, using it as protrusion 10.
Because shading pipe M4 has protrusion 10, into the work being about in lens-optical fiber union body F insertion shading pipe M4
During sequence, the front end face of object lens M3 is engaged to protrusion 10, prevents object lens M3 from being protruded from shading pipe M4.Thus, it is possible to by object lens M3
Be generally held in shading pipe M4.In addition, object lens M3 is maintained at the position isolated with the pipe end of shading pipe M4, therefore do not have to
Worry that grinding process described later can injure the surface of object lens M3.Furthermore it is possible to easily change forms the position of protrusion 10, therefore
Have the advantages that design freedom is big.In general, the distance D1 from the pipe end of shading pipe M4 to object lens M3 is preferably as short as possible.
And then in the present embodiment, the open-work 11 of 1 or more than 2 is set in the proper site of shading pipe M4, from this
Open-work 11 injects bonding agent between linking external surface to shading pipe M4 inner surfaces and lens-optical fiber, by the bonding agent by
Lens-optical fiber union body is fixed on inside shading pipe M4.Thus, reliably prevent lens-optical fiber union body from shading pipe M4
Come off.Bonding agent is injected from the open-work of perisporium, therefore without worrying that object lens are attached to pollution.In addition, form the position of open-work 11
Position preferably corresponding with optical image fibers M1, but can also be position corresponding with object lens M3.
（2nd embodiment）
In embodiment shown in Fig. 3, form the end difference 12 prominent to central axis direction in the end of shading pipe M4, and by it
As lens positioning unit.In the present embodiment, by the way that the end of shading pipe M4 is bent to central axis direction, internal diameter is formed
The flange shape end difference 12 smaller than the outside diameter of object lens M3.End difference 12 is easily formed, therefore can improve image guide device G's
Manufacture efficiency.
Shading pipe M4 has end difference 12 in pipe end, so as to carry out being inserted into lens-optical fiber union body into shading pipe M4
During the process of F, the front end face of object lens M3 is engaged to end difference 12, prevents object lens M3 from being protruded from shading pipe M4.Thus, it is possible to by thing
Mirror M3's is generally held in shading pipe M4.In addition, object lens M3 is maintained at the position isolated with the pipe end of shading pipe M4, therefore
Without worrying that grinding process described later can injure the surface of object lens M3.In addition, end difference 12 can be by object lens M3's and shading pipe M4
Pipe end is isolated, but isolation distance D2 is preferably as short as possible.
Further, in the present embodiment, the path region for setting internal diameter to be reduced in the middle part of the perisporium of shading pipe M4
13, and crimp by the inner surface in the path region 13 outer surface of lens-optical fiber union body.By the structure, reliably
Prevent lens-optical fiber union body from coming off from shading pipe M4.Lens-optical fiber union body F crimping because of path region 13, therefore energy
It is enough that coming off for lens-optical fiber union body F is reliably prevented with simple structure.Further, since without using bonding agent, without load
Glued dose of the surface attachment pollution of heart object lens M3.Carry out easily changing the position for setting path region 13, therefore have
The advantages of free degree of design becomes larger.In addition, the position for forming path region 13 is preferably position corresponding with optical image fibers M1,
But it can also be position corresponding with object lens M3.
（3rd embodiment）
In embodiment shown in Fig. 4, formed in the end of shading pipe M4 towards open-ended and internal diameter reduction taper surface 14,
And using it as lens positioning unit.In the present embodiment, drawing process is nearby implemented to the end of shading pipe M4, is formed extremely
The taper surface 14 of few outside diameter of the minimum diameter less than object lens M3.
Since shading pipe M4 in pipe end has taper surface 14, carrying out being inserted into lens-optical fiber union body into shading pipe M4
During the process of F, the front end face of object lens M3 is engaged to taper surface 14, prevents object lens M3 from being protruded from shading pipe M4.Thus, it is possible to by thing
Mirror M3's is generally held in shading pipe M4.In addition, with the angle of inclination for only adjusting taper surface 14, thing just can be easily changed
The advantages of holding position of mirror M3.In turn by taper surface 14, object lens M3 is maintained at what is isolated with the pipe end of shading pipe M4
Position, therefore without worrying that grinding process described later can injure the surface of object lens M3.In addition, by taper surface 14 make object lens M3 with
The distance D3 of the pipe end isolation of shading pipe M4 is preferably as short as possible.
And then in the present embodiment, thermoplastic adhesive 15 is pre-coated with the inner surface of shading pipe M4, to shading pipe
In M4 after insertion lens-optical fiber union body, heat shading pipe M4 from outside and melt thermoplastic adhesive 15, be then allowed to
Cooling and solidifying, so that fixed lens-optical fiber union body and shading pipe M4.By the structure, lens-optical fiber can be reliably prevented
Union body comes off from shading pipe M4.With just lens-optical fiber can be linked with the simple operation of only heating thermoplastic bonding agent
Body is reliably fixed on inside shading pipe, and, it is attached to object lens and contaminated advantage without worry bonding agent.In addition, coating
The region of thermoplastic adhesive 15 can be region corresponding with optical image fibers M1, or region corresponding with object lens M3, i.e. with
Both corresponding enlarged regions can.
Thus obtained image guide device G of the present invention, consolidates shading pipe M4 in lens-optical fiber union body F
On fixed, it is not necessary in the outer circumferential surface adhesive-applying of lens-optical fiber union body F, therefore without worrying that the end face of object lens M3 is glued
Connect agent attachment pollution.
In addition, object lens M3 is maintained at the position being only separated by a certain distance with the pipe end of shading pipe M4, therefore do not have to after worrying
The grinding process stated can injure the end face of object lens M3.
Then, with reference to Fig. 5-Fig. 8, to using the image guide device G manufactured as described above come the camera device that forms
Manufacturing sequence illustrate.
Process A）Prepare foregoing any one image guide device G and more light-conductive optic fibre M5.Light-conductive optic fibre M5 is by for example
32 fine multicomponent glass optical fiber of 30~50 μm of diameter are formed.
Process B）Such as Fig. 5（A）It is shown, extend by image guide device G and more than image guide device G front ends
Light-conductive optic fibre M5, be inserted into cage walls M6, make the distal process of image guide device G and light-conductive optic fibre M5 from cage walls M6
Go out.Cage walls M6 uses PTFE（Polytetrafluoroethylene (PTFE)）Or ETFE（Ethylene-tetrafluoroethylene co-polymer）This fluoride resin system
Pipe.
Process C）Then such as Fig. 5（B）It is shown, by the image guide device G protruded from cage walls M6 and more light-conductive optic fibres
The cylindric cladding assisted tool M7 of M5 insertions.Coat the cylindrical tube that assisted tool M7 is such as stainless steel.It is straight as cage walls M6
When footpath is 0.7mm, the internal diameter of cladding assisted tool M7 is 0.75mm.
Step D）Then, such as Fig. 5（C）It is shown, the front end for more light-conductive optic fibre M5 for being inserted into cladding assisted tool M7 is tieed up
Hold in the state collected.Moreover, maintaining in the state of this collects state, to bag while being pivoted cladding assisted tool M7
Cover the movement of pipe M6 sides.By the operation, outer circumferential surface of the dispersed configurations of more light-conductive optic fibre M5 in image guide device G.
Process E）Such as Fig. 6（A）It is shown, cladding assisted tool M7 is moved to the cage walls M6 that covering is pre-coated with bonding agent
The position of outer surface.Thus, the outer surface bonding of the inner surface and cage walls M6 that coat assisted tool M7 combines.
Process F）Then such as Fig. 6（B）It is shown, cladding assisted tool M7 is moved in opposite direction.Thus, with coating assisted tool
The cage walls M6 that M7 integratedly links also is moved.
Process G）Then such as Fig. 6（C）It is shown, cladding assisted tool M7 and cage walls M6 is moved to more than image guide device
The position of the front end of G.
Step H）Then as shown in fig. 7, in the position more than image guide device G front ends, cage walls M6 and more are cut off
Light-conductive optic fibre M5.
Process I）Finally as shown in figure 8, the front end of grinding image guide device G and cage walls M6, adjusts length, and
It is smooth by the end face finishing of light-conductive optic fibre M5.
The present invention is by performing above-mentioned operation A）~process I）, can easily around image guide device G equably
It is distributed more light-conductive optic fibre M5.Moreover, in the state of the dispersed configurations of light-conductive optic fibre M5, can be with cage walls M6 bags
Cover its surface.All it is the surface that light-conductive optic fibre M5 is fixed on to image guide device G with bonding agent all the time, it is therefore desirable to
The proficiency of operating personnel, it is difficult to which finishing state is maintained at certain level.In contrast, according to the present invention, due to manufacture
Camera device dispersed light-conductive optic fibre M5 need not be especially skilled, so manufacture efficiency can not only be improved, and easily will
The finishing state of product is maintained at certain level.
Industrial applicability
The present invention is suitable for the manufacture of the image pickup part of endoscope.Particularly in manufacture fibre diameter as intravascular sight glass
For below 1mm superfine conduits when it is useful.
Label declaration
M1 optical image fibers；M2 bonding agents；M3 object lens；M4 shading pipes；M5 light-conductive optic fibres；M6 cage walls；M7
Coat assisted tool；F lens-optical fiber union body；10 protrusions；11 open-works；12 end differences；13 path regions；14
Taper surface；15 thermoplastic adhesives.
Claims (8)
1. a kind of image guide device of endoscope, including：
Lens-optical fiber union body, have the optical image fibers of transmission light and are fixed on the object lens of optical image fibers front end；And
Shading pipe, is inserted into by the front end of lens-optical fiber union body, covers a part of periphery of object lens entirety and optical image fibers
Face；The image guide device of the endoscope is characterized in that：
The shading pipe has lens positioning unit, and the lens positioning unit prevents object lens moving along direction of insertion, and will
Object lens are generally held in inside.
2. the image guide device of endoscope as claimed in claim 1, wherein, the lens positioning unit is in shading pipe
Inner surface protrudes the protrusion to be formed.
3. the image guide device of endoscope as claimed in claim 1, wherein, the lens positioning unit is in shading pipe
The end difference prominent to central axis direction that end is formed.
4. the image guide device of endoscope as claimed in claim 1, wherein, the lens positioning unit is in shading pipe
End formed towards open-ended and internal diameter reduction taper surface.
5. the image guide device of any one of them endoscope such as Claims 1 to 4, wherein, the shading pipe is in perisporium
With open-work, by being injected into shading pipe internal surface from the open-work and lens-optical fiber links bonding agent between external surface,
Lens-optical fiber union body is fixed on inside shading pipe.
6. the image guide device of any one of them endoscope such as Claims 1 to 4, wherein, the shading pipe is in perisporium
Middle part there is the path region of reduced inner diameter, by the inner surface in path region by the outer surface of lens-optical fiber union body
Crimping.
7. the image guide device of any one of them endoscope such as Claims 1 to 4, wherein, by being previously applied on
The thermoplastic adhesive of the inner surface of shading pipe is stated, lens-optical fiber union body is fixed on inside shading pipe.
A kind of 8. manufacture method of endoscope image pick-up device, it is characterised in that including：
Prepare the process of claim 1~7 any one of them image guide device；
By image guide device and the more light-conductive optic fibres extended more than the front end of image guide device insertion cage walls
Process that is interior, making image guide device and more light-conductive optic fibres be protruded from one end of cage walls；
By the process of the cylindric cladding assisted tool of the image guide device protruded from cage walls and more light-conductive optic fibre insertions；
The front end for more light-conductive optic fibres for being inserted into cladding assisted tool is maintained into the state that collects, and make cladding assisted tool around
Moved while axis rotates to cage walls side, so that more light-conductive optic fibres are distributed the outer circumferential surface in image guide device
Process；
Cladding assisted tool is moved to the position of the outer surface of covering cage walls, the inner surface and cage walls of assisted tool will be coated
The process that outer surface bonding combines；
By making cladding assisted tool be moved to the position of the front end more than image guide device in opposite direction, make to aid in cladding
The process that the cage walls that tool links are moved to the position of the front end more than image guide device；
The process for cutting off cage walls and more light-conductive optic fibres in the position more than image guide device front end；And
The process in abrasive cutting-off face.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/076784 WO2017046960A1 (en) | 2015-09-18 | 2015-09-18 | Endoscope image guide and manufacturing method for endoscopic imaging apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107920717A true CN107920717A (en) | 2018-04-17 |
| CN107920717B CN107920717B (en) | 2019-08-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580082925.8A Active CN107920717B (en) | 2015-09-18 | 2015-09-18 | The image guide device of endoscope and the manufacturing method of endoscope image pick-up device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6625652B2 (en) |
| CN (1) | CN107920717B (en) |
| WO (1) | WO2017046960A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948796A (en) * | 2019-05-16 | 2020-11-17 | 雪力光纤有限公司 | Lens device and method for manufacturing lens device |
| CN114129118A (en) * | 2021-11-16 | 2022-03-04 | 深圳迈瑞生物医疗电子股份有限公司 | Rigid tube endoscope and optical assembly |
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| CN111948796A (en) * | 2019-05-16 | 2020-11-17 | 雪力光纤有限公司 | Lens device and method for manufacturing lens device |
| CN114129118A (en) * | 2021-11-16 | 2022-03-04 | 深圳迈瑞生物医疗电子股份有限公司 | Rigid tube endoscope and optical assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2017046960A1 (en) | 2018-07-12 |
| WO2017046960A1 (en) | 2017-03-23 |
| CN107920717B (en) | 2019-08-02 |
| JP6625652B2 (en) | 2019-12-25 |
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